Welding helmet frame



FIG. 1 is a perspective view of a welding helmet frame showing my newdesign;

FIG. 2 is a right side view thereof, the left side being a mirror image;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines form no part of the claimed design.

The ornamental design for a welding helmet frame, as shown anddescribed.